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Use your common sense and intuition as detailed calculations are exceedingly difficult and not really what the question is about.
Keep your eyes open for shapes in nature where flat fitting is exhibited.
Once you are aware of fitting of flat shapes you will see that examples abound in nature. It is fascinating to ask: why does this fitting of shapes occur?
Fitting Flat Shapes
Age 16 to 18
Challenge Level 
Use your common sense and intuition as detailed calculations are exceedingly difficult and not really what the question is about.
Keep your eyes open for shapes in nature where flat fitting is exhibited.
Once you are aware of fitting of flat shapes you will see that examples abound in nature. It is fascinating to ask: why does this fitting of shapes occur?
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